210
FNCA52 TJSJ 150730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST FRI MAY 15 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-152000-
SOUTHEAST COASTAL PLAINS-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 40
TEMP (24H TREND) 89 (+2) 72 (-2) 90
RH % (24H TREND) 52 (-7) 92 (+4) 52
WIND 20FT/EARLY(MPH) E 13 E 12 E 16
WIND 20FT/LATE(MPH) SE 13 E 10 E 17
MIXING HGT(FT-AGL/MSL)4780 4720
TRANSPORT WND (MPH) SE 15 E 17
VENT RATE (KT-FT) 62140 70800
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-152000-
SOUTHERN HILLS-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 10 40
TEMP (24H TREND) 86 (+3) 69 (-3) 87
RH % (24H TREND) 61 (-8) 98 (+5) 62
WIND 20FT/EARLY(MPH) SE 11 E 10 E 12
WIND 20FT/LATE(MPH) SE 11 E 11 E 12
MIXING HGT(FT-AGL/MSL)5820 5520
TRANSPORT WND (MPH) E 15 E 16
VENT RATE (KT-FT) 75660 77280
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-152000-
NORTH COASTAL PLAINS-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 40
TEMP (24H TREND) 91 (+1) 72 (-2) 90
RH % (24H TREND) 57 (-4) 98 (+4) 60
WIND 20FT/EARLY(MPH) E 13 SE 11 E 14
WIND 20FT/LATE(MPH) E 17 E 10 E 19
MIXING HGT(FT-AGL/MSL)5620 4920
TRANSPORT WND (MPH) E 13 E 15
VENT RATE (KT-FT) 61820 63960
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-152000-
NORTHERN HILLS-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 10 50
TEMP (24H TREND) 89 (0) 69 (-2) 89
RH % (24H TREND) 58 (-2) 98 (+3) 62
WIND 20FT/EARLY(MPH) SE 11 SE 10 E 12
WIND 20FT/LATE(MPH) SE 13 E 6 E 16
MIXING HGT(FT-AGL/MSL)6730 6390
TRANSPORT WND (MPH) SE 9 E 12
VENT RATE (KT-FT) 53840 63900
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-152000-
WEST COAST-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 30 0 50
TEMP (24H TREND) 91 (+1) 72 (-1) 91
RH % (24H TREND) 57 (-5) 97 (+3) 60
WIND 20FT/EARLY(MPH) SE 12 E 10 E 13
WIND 20FT/LATE(MPH) SE 14 E 10 E 13
MIXING HGT(FT-AGL/MSL)5210 4710
TRANSPORT WND (MPH) SE 10 E 10
VENT RATE (KT-FT) 46890 42390
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-152000-
EASTERN INTERIOR-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 60
TEMP (24H TREND) 88 (+2) 70 (-3) 88
RH % (24H TREND) 61 (-6) 99 (+3) 63
WIND 20FT/EARLY(MPH) SE 13 E 13 E 13
WIND 20FT/LATE(MPH) SE 13 E 13 E 12
MIXING HGT(FT-AGL/MSL)5850 5650
TRANSPORT WND (MPH) SE 16 E 15
VENT RATE (KT-FT) 81900 73450
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-152000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 60
TEMP (24H TREND) 83 (+3) 68 (-3) 83
RH % (24H TREND) 69 (-9) 100 (+2) 71
WIND 20FT/EARLY(MPH) SE 12 E 10 E 12
WIND 20FT/LATE(MPH) SE 12 E 10 E 11
MIXING HGT(FT-AGL/MSL)3930 4140
TRANSPORT WND (MPH) SE 17 E 17
VENT RATE (KT-FT) 58950 62100
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-152000-
CENTRAL MOUNTAIN RANGE-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 50 0 60
TEMP (24H TREND) 87 (+5) 66 (-4) 88
RH % (24H TREND) 61 (-7) 98 (+3) 64
WIND 20FT/EARLY(MPH) SE 9 SE 6 E 10
WIND 20FT/LATE(MPH) SE 9 E 5 E 10
MIXING HGT(FT-AGL/MSL)7200 7060
TRANSPORT WND (MPH) SE 10 E 12
VENT RATE (KT-FT) 64800 70600
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-152000-
CAYEY MOUNTAIN RANGE-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 60
TEMP (24H TREND) 82 (+2) 69 (-2) 83
RH % (24H TREND) 69 (-6) 100 (+2) 70
WIND 20FT/EARLY(MPH) SE 11 E 8 E 11
WIND 20FT/LATE(MPH) SE 10 E 9 E 11
MIXING HGT(FT-AGL/MSL)4820 4820
TRANSPORT WND (MPH) SE 14 E 16
VENT RATE (KT-FT) 57840 67480
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-152000-
VIEQUES-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 60
TEMP (24H TREND) 88 (+2) 74 (-2) 88
RH % (24H TREND) 62 (-5) 92 (+2) 64
WIND 20FT/EARLY(MPH) SE 16 E 17 E 16
WIND 20FT/LATE(MPH) SE 14 E 17 E 14
MIXING HGT(FT-AGL/MSL)3050 3100
TRANSPORT WND (MPH) SE 21 E 21
VENT RATE (KT-FT) 54900 55800
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-152000-
CULEBRA-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 50
TEMP (24H TREND) 89 (+2) 76 (-2) 89
RH % (24H TREND) 60 (-8) 92 (+4) 61
WIND 20FT/EARLY(MPH) SE 17 E 18 E 16
WIND 20FT/LATE(MPH) SE 16 E 18 E 14
MIXING HGT(FT-AGL/MSL)3100 2970
TRANSPORT WND (MPH) SE 17 E 21
VENT RATE (KT-FT) 46500 53460
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-152000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 50 0 20
TEMP (24H TREND) 91 (+2) 73 (-2) 92
RH % (24H TREND) 48 (-9) 91 (+3) 49
WIND 20FT/EARLY(MPH) E 17 E 14 E 19
WIND 20FT/LATE(MPH) SE 19 E 13 SE 19
MIXING HGT(FT-AGL/MSL)5100 5080
TRANSPORT WND (MPH) E 17 E 20
VENT RATE (KT-FT) 76500 86360
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-152000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 30
TEMP (24H TREND) 86 (+1) 75 (-3) 86
RH % (24H TREND) 65 (-4) 93 (+6) 66
WIND 20FT/EARLY(MPH) SE 16 E 18 E 16
WIND 20FT/LATE(MPH) SE 14 E 18 E 16
MIXING HGT(FT-AGL/MSL)3210 3170
TRANSPORT WND (MPH) SE 18 E 21
VENT RATE (KT-FT) 51360 57060
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-152000-
ST CROIX-
330 AM AST FRI MAY 15 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 30
TEMP (24H TREND) 87 (+1) 74 (-3) 87
RH % (24H TREND) 64 (-5) 93 (+4) 66
WIND 20FT/EARLY(MPH) E 16 E 17 E 16
WIND 20FT/LATE(MPH) E 14 E 17 E 16
MIXING HGT(FT-AGL/MSL)4110 4290
TRANSPORT WND (MPH) SE 18 E 22
VENT RATE (KT-FT) 65760 81510
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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